Watchdog Timer Selection Id Register (Upper/Lower) (Wdth/Wdtl) - Fujitsu 8FX Hardware Manual

CHAPTER 27 NON-VOLATILE REGISTER (NVR) INTERFACE
27.3 Registers
27.3.4 Watchdog Timer Selection ID Register
(Upper/Lower) (WDTH/WDTL)
This section describes the watchdog timer selection ID register (upper/lower)
(WDTH/WDTL).
■ Register Configuration
WDTH
bit 7
Field WDTH7
Attribute R
Initial value X
WDTL
bit 7
Field WDTL7
Attribute R
Initial value X
■ Functions of WDTH Register
[bit7:0] WDTH[7:0]: Watchdog timer selection ID (upper) bits
These bits are loaded from the Flash address 0xFFBE (bit7:0) after a reset. The initial values are determined
by the pre-loaded values in the NVR Flash area.
These bits cannot be modified while the CPU is running.
See Table 27.3-2 for watchdog timer selection.
See "27.5 Notes on Using NVR Interface" for notes on writing NVR values.
■ Functions of WDTL Register
[bit7:0] WDTL[7:0]: Watchdog timer selection ID (lower) bits
These bits are loaded from the Flash address 0xFFBF (bit7:0) after a reset. The initial values are determined
by the pre-loaded values in the NVR Flash area.
These bits cannot be modified while the CPU is running.
See Table 27.3-2 for watchdog timer selection.
See "27.5 Notes on Using NVR Interface" for notes on writing NVR values.
Table 27.3-2 Watchdog Timer Selection ID
WDTH[7:0], WDTL[7:0]
0xA596
0xA597
Other than the above
588
6 5
WDTH6 WDTH5
R R
X X
6 5
WDTL6 WDTL5
R R
X X
The hardware watchdog timer is disabled; the software watchdog timer is enabled.
The hardware watchdog timer is enabled; the software watchdog timer is disabled. The
hardware watchdog timer can be stopped in all standby modes (stop mode, sleep mode,
time-base timer mode and watch mode).
The hardware watchdog timer is enabled; the software watchdog timer is disabled. The
hardware watchdog timer keeps operating in all standby modes (stop mode, sleep mode,
time-base timer mode and watch mode).
FUJITSU SEMICONDUCTOR LIMITED
4 3
WDTH4 WDTH3
R R
X X
4 3
WDTL4 WDTL3
R R
X X
Function
MB95630H Series
2 1
WDTH2 WDTH1
R R
X X
2 1
WDTL2 WDTL1
R R
X X
MN702-00009-2v0-E
0
WDTH0
R
X
0
WDTL0
R
X